Electrochemical Study of Carbon Nanotubes/Nanohybrids for Determination of Metal Species Cu²⁺ and Pb²⁺ in Water Samples

Figure 3

Graph comparing analytical calibration curves for analysis of Cu²⁺ using the glassy carbon electrode and its modifications with nanomaterials and metals. (a) Method 1. (b) Method 2.

(a)

(b)